Nongonococcal urethritis may be caused by the protozoan ________

A) Chlamydia trachomatis
B) Neisseria gonorrhoaea
C) Haemophilus ducreyi
D) Trichomonas vaginalis


Answer: D

Biology & Microbiology

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Explain how Mendel’s law of segregation applies to the distribution of alleles in gametes.

What will be an ideal response?

Biology & Microbiology

Rabbits introduced to Australia overpopulated because in their new habitat, ____

a. people rarely hunted them b. they had no natural diseases c. they had no natural predators d. their food supply was larger e. there were few herbivorous competitors

Biology & Microbiology

The offspring of a monohybrid testcross could have what possible genotype(s)?

A. AA, Aa, and aa B. AA only C. aa only D. Aa and aa E. AA and Aa

Biology & Microbiology

Select all of the following that are postzygotic isolating mechanisms.

A. Hybrids develop abnormally. B. Hybrids cannot be formed. C. Hybrids fail to become established in nature. D. Hybrids are sterile.

Biology & Microbiology